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When developing the "UNIT" mod in 2014, I borrowed the creature's description and texture from that mod. I slightly modified the texture and created various effects for the creature, such as icy evaporation, breath, death, etc., and also fixed some minor flaws.
Who to contact regarding copyright is more of a rhetorical question. Since it is unlikely that it will be possible to find the author of the original idea.

Regarding the ice dragons from the Phoenix mod:
It is precisely because of the effects that were created that I like them, and I would like to add them. Of course, if you allow me to use your work in my mod.

Added 6 minutes ago
nargott snail mail dot ru
Thank you =)
But as Frozensoull pointed out, he is not the author, but used the work of previous authors, so there is no point in contacting him =)
I couldn't stop thinking about that Chinese mod that I couldn't download (regarding the appearance of the icons of enhanced spells). I decided to try to create something similar myself, and it seems to have turned out quite well.
